Link aggregation parameters – Brocade TurboIron 24X Series Configuration Guide User Manual
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Brocade TurboIron 24X Series Configuration Guide
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Dynamic link aggregation
When you change a port VLAN membership, the device searches through existing key groups for a
port with matching port properties. Specifically, it searches for a match on all three of the following
properties:
•
VLAN ID
•
default key
•
port tag type (tagged or untagged)
If it finds a match, the port (whose VLAN membership you are changing) gets the matching port key.
If it does not find a match, the port gets a new key.
NOTE
For multi-slot trunk groups, you must manually configure the keys in the trunk group(s) to match. For
instructions on configuring keys manually, see
“Configuring keys for ports with link aggregation
How changing the VLAN membership of a port affects
trunk groups and dynamic keys
When you change a port VLAN membership and the port is currently a member of a trunk group,
the following changes occur to the trunk group:
•
The device tears down the existing trunk group.
•
All ports in the trunk group get a new key.
•
The new key group aggregates into a new trunk group.
When you change a port VLAN membership, and the port is not a member of a trunk group, the
following changes occur:
•
The port gets a new key depending on changes to the port VLAN tag type, as follows:
•
Tagged to Tagged VLAN – The primary port of the trunk group gets a new key.
•
Tagged to Untagged VLAN –The port gets the default key for untagged ports.
•
Untagged to Tagged VLAN – If the device finds a port with matching port properties, the
port gets that port key. If it does not find one, the port gets a new key.
•
Untagged to Untagged VLAN – The port gets a new key depending on whether it is in the
default VLAN or not. If there is a trunk group associated with the key, it is not affected.
•
All other ports keep their existing key.
•
The new key groups try to aggregate into trunk groups.
Link aggregation parameters
You can change the settings on individual ports for the following link aggregation parameters:
•
System priority
•
Port priority
•
Timeout
•
Key